Fix #81649: imap_(un)delete accept sequences, not single numbers

As such, the parameter name `$message_num` is utmost misleading; it
should be `$message_nums` as for other functions.

Closes GH-7686.

Author: cmb69

NEWS

@@ -19,6 +19,10 @@ PHP                                                                        NEWS
 - GD:
   . Fixed bug #71316 (libpng warning from imagecreatefromstring). (cmb)
 
+- IMAP:
+  . Fixed bug #81649 (imap_(un)delete accept sequences, not single numbers).
+    (cmb)
+
 - OpenSSL:
   . Fixed bug #75725 (./configure: detecting RAND_egd). (Dilyan Palauzov)
 

ext/imap/php_imap.stub.php

@@ -81,12 +81,12 @@ function imap_expunge($imap): bool {}
 /**
  * @param resource $imap
  */
-function imap_delete($imap, string $message_num, int $flags = 0): bool {}
+function imap_delete($imap, string $message_nums, int $flags = 0): bool {}
 
 /**
  * @param resource $imap
  */
-function imap_undelete($imap, string $message_num, int $flags = 0): bool {}
+function imap_undelete($imap, string $message_nums, int $flags = 0): bool {}
 
 /** @param resource $imap */
 function imap_check($imap): stdClass|false {}

ext/imap/php_imap_arginfo.h

@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: d6d158112a802d867646b8f85402b8762599180b */
+ * Stub hash: ec8020febecb370ef2e5f19f00cd092ecb198f8c */
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_imap_open, 0, 0, 3)
 	ZEND_ARG_TYPE_INFO(0, mailbox, IS_STRING, 0)
@@ -107,7 +107,7 @@ ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_imap_delete, 0, 2, _IS_BOOL, 0)
 	ZEND_ARG_INFO(0, imap)
-	ZEND_ARG_TYPE_INFO(0, message_num, IS_STRING, 0)
+	ZEND_ARG_TYPE_INFO(0, message_nums, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, flags, IS_LONG, 0, "0")
 ZEND_END_ARG_INFO()